1999～ 2 0 0 0年华安 3号在粤东作双季稻种植成功。作早稻单产 9.942～ 10 .38t/hm2 ,比对照增产 10 .45 %～ 18.80 % ;作晚稻单产 9.5 48t/hm2 ,比汕优 6 3增产 6 .15 %。华安 3号的高产栽培技术 ,一是争足穗攻大穗 ;二是控制后期氮肥防倒伏 ;三是科学用水 ,及时防病治虫、杀螺灭鼠 Hua’an No.3 from 1999 to 2000 succeeded in planting double cropping rice in eastern Guangdong. The yield of early rice was 9.942 ~ 10.38t / hm2, which increased 10.45% ~ 18.80% compared with the control. The yield of late rice was 9.5 48t / hm2, which was 6.15% higher than that of Shanyou 6 3. Hua’an No.3 high-yielding cultivation techniques, one is to fight spike attack big spike; the second is to control late anti-lodging of nitrogen fertilizer; third is scientific water, timely prevention pest control, kill spirochete